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25305273013 = 1311009191447
BaseRepresentation
bin10111100100010011…
…111101001010110101
32102022120100001122211
4113210103331022311
5403311122214023
615343003453421
71554042162106
oct274423751265
972276301584
1025305273013
11a806192179
124aa2827271
13250385c437
141320b303ad
159d18c3a0d
hex5e44fd2b5

25305273013 has 8 divisors (see below), whose sum is σ = 25523847360. Its totient is φ = 25087083840.

The previous prime is 25305272983. The next prime is 25305273017. The reversal of 25305273013 is 31037250352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25305273013 - 29 = 25305272501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25305273017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36456 + ... + 227902.

It is an arithmetic number, because the mean of its divisors is an integer number (3190480920).

Almost surely, 225305273013 is an apocalyptic number.

It is an amenable number.

25305273013 is a deficient number, since it is larger than the sum of its proper divisors (218574347).

25305273013 is a wasteful number, since it uses less digits than its factorization.

25305273013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192587.

The product of its (nonzero) digits is 18900, while the sum is 31.

The spelling of 25305273013 in words is "twenty-five billion, three hundred five million, two hundred seventy-three thousand, thirteen".

Divisors: 1 131 1009 132179 191447 25079557 193170023 25305273013